Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments (Fair value hedges) (Details 3)

v2.4.1.9
Derivative Financial Instruments (Fair value hedges) (Details 3) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
FHLB Advances [Member]    
Gains and (losses) recognized in noninterest income on the ineffective portion on interest rate contracts for derivatives designated as fair value and cash flow hedges    
Gains and (losses) recognized in noninterest income on the ineffective portion on interest rate contracts for derivatives designated as cash flow hedges $ 0us-gaap_GainLossOnInterestRateCashFlowHedgeIneffectiveness
/ us-gaap_DerivativeInstrumentRiskAxis
= hban_FhlbAdvancesMember 		$ 0us-gaap_GainLossOnInterestRateCashFlowHedgeIneffectiveness
/ us-gaap_DerivativeInstrumentRiskAxis
= hban_FhlbAdvancesMember
Loan [Member]    
Gains and (losses) recognized in noninterest income on the ineffective portion on interest rate contracts for derivatives designated as fair value and cash flow hedges    
Gains and (losses) recognized in noninterest income on the ineffective portion on interest rate contracts for derivatives designated as cash flow hedges $ (163)us-gaap_GainLossOnInterestRateCashFlowHedgeIneffectiveness
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_LoansPayableMember 		$ 132us-gaap_GainLossOnInterestRateCashFlowHedgeIneffectiveness
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_LoansPayableMember